ASP.NET MVC5+EF6+EasyUI 後臺管理系統（36）-文章發佈系統③-kindeditor使用

系列目錄

我相信目前國內富文本編輯器中KindEditor 屬於前列，詳細的中文幫助文檔，簡單的加載方式，能夠定製的輕量級。都是系統的首選

不少文章教程有kindeditor的使用，但本文比較特別可能帶有，上傳文件的縮略圖和水印的源碼！這塊也是比較複雜和備受關注的功能

1、下載編輯器

KindEditor 4.1.10 (2013-11-23) [1143KB] 官方最新版 或者: http://www.kindsoft.net/down.php

2、添加到項目

解壓 kindeditor-x.x.x.zip 文件，將全部文件上傳到您的網站程序目錄裏

我放在Scripts下

 

裏面有不少例子，你均可以刪掉，好比說asp ,asp.net ,jsp ,php,examples

themes是主題，共4個

3、瞭解經常使用方法

咱們不須要很深刻和學習這個富文本編輯器，用到什麼到官方查什麼就能夠，或者google一下，下面是最受關注的幾個方法了

1. 加載編輯器
2. 設置編輯器的值
3. 獲取編輯器的值
4. 上傳圖片和文件
5. 上傳圖片加水印、縮略圖

如今咱們一個一個來了解

1.加載編輯器

引入JS（前要引入jquery）

<script src="@Url.Content("~/Scripts/kindeditor/kindeditor-min.js")" type="text/javascript"></script>

編輯器須要textarea標籤的支持，因此

<textarea id="BodyConetent" name="BodyContent" style="width:700px;height:300px;">HTML內容</textarea>  

或者在MVC

 @Html.TextAreaFor(model => model.BodyContent, new { style = "width:675px; height:225px;" })

style的寬高是編輯器的寬高

最後代碼是

<script src="@Url.Content("~/Scripts/kindeditor/kindeditor-min.js")" type="text/javascript"></script>
<script type="text/javascript">
    $(function () {
        //加載編輯器
        var editor = KindEditor.create('textarea[name="BodyContent"]', {
            resizeType: 1,
            uploadJson: '/Core/upload_ajax.ashx?action=EditorFile&IsWater=1',
            fileManagerJson: '/Core/upload_ajax.ashx?action=ManagerFile',
            allowFileManager: false,
            items: ['source', 'undo', 'redo', 'wordpaste', 'justifyleft', 'justifycenter', 'justifyright', 'insertorderedlist', 'formatblock', 'fontname', 'fontsize', 'forecolor', 'bold', 'italic', 'table', 'link', 'unlink', 'image', 'fullscreen']
        });
    });
</script>
<textarea id="BodyConetent" name="BodyContent" style="width:700px;height:300px;">HTML內容</textarea>

有必要解釋一下上面的方法

uploadJson：上傳文件地址 

fileManagerJson：文件管理

allowFileManager:是否啓用管理器 false不啓動（管理器能夠看到之前上傳的文件）

（以前分享過一個上傳例子）轉到 swfupload多文件上傳[附源碼] 下載這裏的源碼。並提取upload_ajax.ashx這個文件所相關的類

替換upload_ajax.ashx這個文件，裏面添加了幾個kindeditor上傳和文件管理的方法

using System;
using System.Collections;
using System.IO;
using System.Collections.Generic;
using System.Web.SessionState;
using System.Web;
using System.Text.RegularExpressions;
using App.Common;
using LitJson;
using App.Core;

namespace App.Admin
{
    /// <summary>
    /// 文件上傳處理頁
    /// </summary>
    public class upload_ajax : IHttpHandler, IRequiresSessionState
    {

        public void ProcessRequest(HttpContext context)
        {
            //取得處事類型
            string action = ContextRequest.GetQueryString("action");

            switch (action)
            {
                case "SingleFile": //單文件
                    SingleFile(context);
                    break;
                case "MultipleFile": //多文件
                    MultipleFile(context);
                    break;
            
                case "EditorFile": //編輯器文件
                    EditorFile(context);
                    break;
                case "ManagerFile": //管理文件
                    ManagerFile(context);
                    break;
            }

        }

        #region 上傳單文件處理===================================
        private void SingleFile(HttpContext context)
        {
            string _refilepath = ContextRequest.GetQueryString("ReFilePath"); //取得返回的對象名稱
            string _upfilepath = ContextRequest.GetQueryString("UpFilePath"); //取得上傳的對象名稱
            string _delfile = ContextRequest.GetString(_refilepath);
            HttpPostedFile _upfile = context.Request.Files[_upfilepath];
            bool _iswater = false; //默認不打水印
            bool _isthumbnail = false; //默認不生成縮略圖
            bool _isimage = false;

            if (ContextRequest.GetQueryString("IsWater") == "1")
                _iswater = true;
            if (ContextRequest.GetQueryString("IsThumbnail") == "1")
                _isthumbnail = true;
            if (ContextRequest.GetQueryString("IsImage") == "1")
                _isimage = true;

            if (_upfile == null)
            {
                context.Response.Write("{\"msg\": 0, \"msgbox\": \"請選擇要上傳文件！\"}");
                return;
            }
            UpLoad upFiles = new UpLoad();
            string msg = upFiles.fileSaveAs(_upfile, _isthumbnail, _iswater, _isimage);
            //刪除已存在的舊文件
            Utils.DeleteUpFile(_delfile);
            //返回成功信息
            context.Response.Write(msg);
            context.Response.End();
        }
        #endregion

        #region 上傳多文件處理===================================
        private void MultipleFile(HttpContext context)
        {
            string _upfilepath = context.Request.QueryString["UpFilePath"]; //取得上傳的對象名稱
            HttpPostedFile _upfile = context.Request.Files[_upfilepath];
            bool _iswater = false; //默認不打水印
            bool _isthumbnail = false; //默認不生成縮略圖

            if (ContextRequest.GetQueryString("IsWater") == "1")
                _iswater = true;
            if (ContextRequest.GetQueryString("IsThumbnail") == "1")
                _isthumbnail = true;

            if (_upfile == null)
            {
                context.Response.Write("{\"msg\": 0, \"msgbox\": \"請選擇要上傳文件！\"}");
                return;
            }
            UpLoad upFiles = new UpLoad();
            string msg = upFiles.fileSaveAs(_upfile, _isthumbnail, _iswater);
            //返回成功信息
            context.Response.Write(msg);
            context.Response.End();
        }
        #endregion


        #region 編輯器上傳處理===================================
        private void EditorFile(HttpContext context)
        {
            bool _iswater = false; //默認不打水印
            if (context.Request.QueryString["IsWater"] == "1")
                _iswater = true;
            HttpPostedFile imgFile = context.Request.Files["imgFile"];
            if (imgFile == null)
            {
                showError(context, "請選擇要上傳文件！");
                return;
            }
            UpLoad upFiles = new UpLoad();
            string remsg = upFiles.fileSaveAs(imgFile, false, _iswater);
            //string pattern = @"^{\s*msg:\s*(.*)\s*,\s*msgbox:\s*\""(.*)\""\s*}$"; //鍵名前和鍵值先後都容許出現空白字符
            //Regex r = new Regex(pattern, RegexOptions.IgnoreCase); //正則表達式實例，不區分大小寫
            //Match m = r.Match(remsg); //搜索匹配項
            //string msg = m.Groups[1].Value; //msg的值，正則表達式中第1個圓括號捕獲的值
            //string msgbox = m.Groups[2].Value; //msgbox的值，正則表達式中第2個圓括號捕獲的值 
            JsonData jd = JsonMapper.ToObject(remsg);
            string msg = jd["msg"].ToString();
            string msgbox = jd["msgbox"].ToString();
            if (msg == "0")
            {
                showError(context, msgbox);
                return;
            }
            Hashtable hash = new Hashtable();
            hash["error"] = 0;
            hash["url"] = msgbox;
            context.Response.AddHeader("Content-Type", "text/html; charset=UTF-8");
            context.Response.Write(JsonMapper.ToJson(hash));
            context.Response.End();

        }
        //顯示錯誤
        private void showError(HttpContext context, string message)
        {
            Hashtable hash = new Hashtable();
            hash["error"] = 1;
            hash["message"] = message;
            context.Response.AddHeader("Content-Type", "text/html; charset=UTF-8");
            context.Response.Write(JsonMapper.ToJson(hash));
            context.Response.End();
        }
        #endregion

        #region 瀏覽文件處理=====================================
        private void ManagerFile(HttpContext context)
        {
            App.Models.Sys.SysConfig siteConfig = new App.BLL.SysConfigBLL().loadConfig(Utils.GetXmlMapPath("Configpath"));
            //String aspxUrl = context.Request.Path.Substring(0, context.Request.Path.LastIndexOf("/") + 1);

            //根目錄路徑，相對路徑
            String rootPath = siteConfig.webpath + siteConfig.attachpath + "/"; //站點目錄+上傳目錄
            //根目錄URL，能夠指定絕對路徑，好比 http://www.App.com/attached/
            String rootUrl = siteConfig.webpath + siteConfig.attachpath + "/";
            //圖片擴展名
            String fileTypes = "gif,jpg,jpeg,png,bmp";

            String currentPath = "";
            String currentUrl = "";
            String currentDirPath = "";
            String moveupDirPath = "";

            String dirPath = Utils.GetMapPath(rootPath);
            String dirName = context.Request.QueryString["dir"];
            //if (!String.IsNullOrEmpty(dirName))
            //{
            //    if (Array.IndexOf("image,flash,media,file".Split(','), dirName) == -1)
            //    {
            //        context.Response.Write("Invalid Directory name.");
            //        context.Response.End();
            //    }
            //    dirPath += dirName + "/";
            //    rootUrl += dirName + "/";
            //    if (!Directory.Exists(dirPath))
            //    {
            //        Directory.CreateDirectory(dirPath);
            //    }
            //}

            //根據path參數，設置各路徑和URL
            String path = context.Request.QueryString["path"];
            path = String.IsNullOrEmpty(path) ? "" : path;
            if (path == "")
            {
                currentPath = dirPath;
                currentUrl = rootUrl;
                currentDirPath = "";
                moveupDirPath = "";
            }
            else
            {
                currentPath = dirPath + path;
                currentUrl = rootUrl + path;
                currentDirPath = path;
                moveupDirPath = Regex.Replace(currentDirPath, @"(.*?)[^\/]+\/$", "$1");
            }

            //排序形式，name or size or type
            String order = context.Request.QueryString["order"];
            order = String.IsNullOrEmpty(order) ? "" : order.ToLower();

            //不容許使用..移動到上一級目錄
            if (Regex.IsMatch(path, @"\.\."))
            {
                context.Response.Write("Access is not allowed.");
                context.Response.End();
            }
            //最後一個字符不是/
            if (path != "" && !path.EndsWith("/"))
            {
                context.Response.Write("Parameter is not valid.");
                context.Response.End();
            }
            //目錄不存在或不是目錄
            if (!Directory.Exists(currentPath))
            {
                context.Response.Write("Directory does not exist.");
                context.Response.End();
            }

            //遍歷目錄取得文件信息
            string[] dirList = Directory.GetDirectories(currentPath);
            string[] fileList = Directory.GetFiles(currentPath);

            switch (order)
            {
                case "size":
                    Array.Sort(dirList, new NameSorter());
                    Array.Sort(fileList, new SizeSorter());
                    break;
                case "type":
                    Array.Sort(dirList, new NameSorter());
                    Array.Sort(fileList, new TypeSorter());
                    break;
                case "name":
                default:
                    Array.Sort(dirList, new NameSorter());
                    Array.Sort(fileList, new NameSorter());
                    break;
            }

            Hashtable result = new Hashtable();
            result["moveup_dir_path"] = moveupDirPath;
            result["current_dir_path"] = currentDirPath;
            result["current_url"] = currentUrl;
            result["total_count"] = dirList.Length + fileList.Length;
            List<Hashtable> dirFileList = new List<Hashtable>();
            result["file_list"] = dirFileList;
            for (int i = 0; i < dirList.Length; i++)
            {
                DirectoryInfo dir = new DirectoryInfo(dirList[i]);
                Hashtable hash = new Hashtable();
                hash["is_dir"] = true;
                hash["has_file"] = (dir.GetFileSystemInfos().Length > 0);
                hash["filesize"] = 0;
                hash["is_photo"] = false;
                hash["filetype"] = "";
                hash["filename"] = dir.Name;
                hash["datetime"] = dir.LastWriteTime.ToString("yyyy-MM-dd HH:mm:ss");
                dirFileList.Add(hash);
            }
            for (int i = 0; i < fileList.Length; i++)
            {
                FileInfo file = new FileInfo(fileList[i]);
                Hashtable hash = new Hashtable();
                hash["is_dir"] = false;
                hash["has_file"] = false;
                hash["filesize"] = file.Length;
                hash["is_photo"] = (Array.IndexOf(fileTypes.Split(','), file.Extension.Substring(1).ToLower()) >= 0);
                hash["filetype"] = file.Extension.Substring(1);
                hash["filename"] = file.Name;
                hash["datetime"] = file.LastWriteTime.ToString("yyyy-MM-dd HH:mm:ss");
                dirFileList.Add(hash);
            }
            context.Response.AddHeader("Content-Type", "application/json; charset=UTF-8");
            context.Response.Write(JsonMapper.ToJson(result));
            context.Response.End();
        }

        #region Helper
        public class NameSorter : IComparer
        {
            public int Compare(object x, object y)
            {
                if (x == null && y == null)
                {
                    return 0;
                }
                if (x == null)
                {
                    return -1;
                }
                if (y == null)
                {
                    return 1;
                }
                FileInfo xInfo = new FileInfo(x.ToString());
                FileInfo yInfo = new FileInfo(y.ToString());

                return xInfo.FullName.CompareTo(yInfo.FullName);
            }
        }

        public class SizeSorter : IComparer
        {
            public int Compare(object x, object y)
            {
                if (x == null && y == null)
                {
                    return 0;
                }
                if (x == null)
                {
                    return -1;
                }
                if (y == null)
                {
                    return 1;
                }
                FileInfo xInfo = new FileInfo(x.ToString());
                FileInfo yInfo = new FileInfo(y.ToString());

                return xInfo.Length.CompareTo(yInfo.Length);
            }
        }

        public class TypeSorter : IComparer
        {
            public int Compare(object x, object y)
            {
                if (x == null && y == null)
                {
                    return 0;
                }
                if (x == null)
                {
                    return -1;
                }
                if (y == null)
                {
                    return 1;
                }
                FileInfo xInfo = new FileInfo(x.ToString());
                FileInfo yInfo = new FileInfo(y.ToString());

                return xInfo.Extension.CompareTo(yInfo.Extension);
            }
        }
        #endregion
        #endregion

        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
    }
}

upload_ajax

（因爲上傳圖片涉及到水印，縮略圖之類）致使類比較多因此從swf這個實例中提取併合並

下載LitJson並引入 http://pan.baidu.com/share/link?shareid=2964341274&uk=3624026355   裏面須要用到序列化json這個類能夠幫助，這個類是開源的，你們能夠百度源碼

items:表明自定義工具欄

http://kindeditor.net/ke4/examples/custom-plugin.html 能夠參考官方例子，將不須要的去掉，好比縮進功能

無設置items的完整模式

設置後的模式

水印能夠是文字和圖片

請你們到swfupload例子源碼中獲取到UpLoad.cs這個類，這個類寫了生成縮略圖、打水印等信息，是本次上傳的核心類之一

2.設置編輯器的值和初始化編輯器的值

初始化值值須要一開始賦值給textarea就能夠了

設置值editor.html('<h3>Hello KindEditor</h3>');

3.獲取編輯器的值

editor.html()

看到官方的http://kindeditor.net/ke4/examples/default.html例子

 很簡單的一次使用編輯器，比之前的很流行的CKEditor好用